}

// makeslicecopy allocates a slice of "tolen" elements of type "et",
// then copies "fromlen" elements of type "et" into that new allocation from "from".
func makeslicecopy(et *_type, tolen int, fromlen int, from unsafe.Pointer) unsafe.Pointer {
	var tomem, copymem uintptr
	if uintptr(tolen) > uintptr(fromlen) {
		var overflow bool
		tomem, overflow = math.MulUintptr(et.Size_, uintptr(tolen))

func slicerunetostring(*[32]byte, []rune) string
func stringtoslicebyte(*[32]byte, string) []byte
func stringtoslicerune(*[32]rune, string) []rune
func slicecopy(toPtr *any, toLen int, fromPtr *any, fromLen int, wid uintptr) int

func decoderune(string, int) (retv rune, retk int)
func countrunes(string) int

// Convert non-interface type to the data word of a (empty or nonempty) interface.

//sys	setsockopt(s int, level int, name int, val unsafe.Pointer, vallen uintptr) (err error) = libsocket.setsockopt
//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) = libsocket.recvfrom
//sys	recvmsg(s int, msg *Msghdr, flags int) (n int, err error) = libsocket.__xnet_recvmsg
//sys	getexecname() (path unsafe.Pointer, err error) = libc.getexecname

	r1, _, e1 := Syscall9(procWSARecvFrom.Addr(), 9, uintptr(s), uintptr(unsafe.Pointer(bufs)), uintptr(bufcnt), uintptr(unsafe.Pointer(recvd)), uintptr(unsafe.Pointer(flags)), uintptr(unsafe.Pointer(from)), uintptr(unsafe.Pointer(fromlen)), uintptr(unsafe.Pointer(overlapped)), uintptr(unsafe.Pointer(croutine)))

//sysnb	getpeername(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
//sys	getsockname(fd int, rsa *RawSockaddrAny, addrlen *_Socklen) (err error)
//sys	recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error)
//sys	sendto(s int, buf []byte, flags int, to unsafe.Pointer, addrlen _Socklen) (err error)
//sys	Shutdown(s int, how int) (err error)

func recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) {
	var _p0 unsafe.Pointer
	if len(p) > 0 {
		_p0 = unsafe.Pointer(&p[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := syscall6(abi.FuncPCABI0(libc_recvfrom_trampoline), uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(flags), uintptr(unsafe.Pointer(from)), uintptr(unsafe.Pointer(fromlen)))
	n = int(r0)
	if e1 != 0 {

func recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) {
	var _p0 *byte
	if len(p) > 0 {
		_p0 = &p[0]
	}
	r0, _, e1 := syscall6(uintptr(unsafe.Pointer(&libc_recvfrom)), 6, uintptr(fd), uintptr(unsafe.Pointer(_p0)), uintptr(len(p)), uintptr(flags), uintptr(unsafe.Pointer(from)), uintptr(unsafe.Pointer(fromlen)))
	n = int(r0)
	if e1 != 0 {
		err = errnoErr(e1)
	}
	return

func recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) {
	var _p0 unsafe.Pointer
	if len(p) > 0 {
		_p0 = unsafe.Pointer(&p[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := syscall6(abi.FuncPCABI0(libc_recvfrom_trampoline), uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(flags), uintptr(unsafe.Pointer(from)), uintptr(unsafe.Pointer(fromlen)))
	n = int(r0)
	if e1 != 0 {

func recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) {
	var _p0 unsafe.Pointer
	if len(p) > 0 {
		_p0 = unsafe.Pointer(&p[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := syscall6(abi.FuncPCABI0(libc_recvfrom_trampoline), uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(flags), uintptr(unsafe.Pointer(from)), uintptr(unsafe.Pointer(fromlen)))
	n = int(r0)
	if e1 != 0 {

func recvfrom(fd int, p []byte, flags int, from *RawSockaddrAny, fromlen *_Socklen) (n int, err error) {
	var _p0 unsafe.Pointer
	if len(p) > 0 {
		_p0 = unsafe.Pointer(&p[0])
	} else {
		_p0 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := syscall6(abi.FuncPCABI0(libc_recvfrom_trampoline), uintptr(fd), uintptr(_p0), uintptr(len(p)), uintptr(flags), uintptr(unsafe.Pointer(from)), uintptr(unsafe.Pointer(fromlen)))
	n = int(r0)
	if e1 != 0 {